Machine for perforating paper.



PATENTBD JUNE 19,-1906.

E. SOUTH'WORTH. MACHINE FOR PERFORATING PAPER.

APPLIUATION IILEDJ'ULY3 1906.

J I n 'TT" I UNITED STATES PATENT OFFICE. i EDWARD SOUTHWORTH, or PORTLAND, MAINE. I MAoH INE FOR PERFORM-me. PAPER.

Patented June 19, 1906.

' Application filed July 3,1905. Serial No. 268,041.

To a whom-it may concern:

P Be it known that I, EDWARD SOUTHWORTH, a citizen of the United States of America, and a resident of Portland, county of Cumberland, State of Maine, have invented certain new and useful Improvements in Machines of perforating-punches arranged in a verti cally-movable frame, movement being effected by means of a horizontal shaft journaled within the frame, the shaft and the frame carrying interlocking projections, as a gear-tooth on one and a recess on theother, whereby the rotation of the shaft imparts a vertical motion to the frame. Th1s construction'connects the shaft directly with the punch-holding frame, doing away with the usual pitmen, and makes the mechanism very compact and well adapted to be used as n attachment to other machines where compactness is desirable.

I illustrate my invention by means of the accompanying drawings, in which is shown perforating mechanism constructed according to my invention.

Figure 1 is a section on the line as w of Fig. 2. Fig. 2 is a front elevation, and Fig. 3 is an enlarged section on y 'y of Fig. 2.

In the drawingsarepresents the table, and A the base of the machine, h being a die-plate secured to the base and containing a series of openings corresponding to the perforations to be made. In the present instance the perforations are shown as round, and they are made by a series of perforating-punches g, here shown as independent pins, each having a head on its upper end. The lower portion of the pin 9 passes through a guide-plate d,

which is elevated sufficiently above the dieplate It to allow the introduction of the necessary number of sheets to be perforated. This guide-plate d is supported in the main frame B of the machine, which is here shown as formed integral with the base A. The

uide-plate d has formed in connection with 1t an upright flange or partition (1, which is secured to the frame of the machine by bolts 01". Meansare' providedfor forcing the pins 9 downward through the die-plate and raising them again after the punching operation is complete. With this end in view I prodirectly above the guide-plate d and in front of the upright flange d. This frame is held by vertical guides d at the ends of the frame, by which a limited amount of vertical motion may be allowed to the frame. The frame consists of a lower horizontal bar is and an upper horizontal bar k, with end sections connecting these two bars. As here shown, the upper ends of the pins g pass vertically through the front portion of the flat bar is, the bar being rabbeted'out so that the head of the pin comes within the rabbet or recess formed in the forward edge of the bar.

as here shown, a surface-plate F, which is secured by screws to the front side of the frame -D. The loweredge of this face-plate is rabbeted to form a shoulder or edge 7, which fits viding a surface against which the heads of the plns g impinge as they are forced downward.

' Vertical motion is imparted to the frame D by a cam-shaft E, which is journaled in bearingsf projecting outward from the flange d. The shaft E lies in the frame D, and it is connected with the frame by means of a geartooth e, which is adapted to fit a corresponding slot or recess in the face-plate F. Thus when the cam-shaft is rotated the frame D is made to rise and fall, forcing downward the punches and withdrawing the sameafter the perforating operation is complete. A lever e is provided for operating the cam-shaft E, and it is evident that power may be applied to this lever in any suitable way.

The lower plate 7c and the face-plate F are so located that one end of the line of punches g is held normally higher than the opposite end, so that as the frame D descends the punches will pass through the paper in succession from one end to the other, so that comparatively few will be passing through the paper at the same time. The result is a species of shearing cut by which much less power is required to operate the device than if the punches all passed through at the same vide a vertically-movable frame D, located.

order to force the pins downward, I provide,

within the rabbetformed in the bar is, pro-.

time. It is evident that the pins or punches may be of any required shape or that they may be made a part of or rigidly attached to the frame D. a I

I claim- 1. In a machine for perforating paper, the combination of a series of perforatingpunches, a corres onding die-plate, a uideplate above said (l fe-plate through whic said punches pass, a vertically-movable punchholding frame carrying said series of punches, a cam-shaft journaled within said frames and operating to raise and lower said frame and means for rotating said shaft.

2. In a machine for perforating paper, the combination of a series of perforatingpunches, a corresponding die-plate, a guideplate above said die-plate through which said punches pass, a vertically-movable punchholding frame to which the upper ends of said punches are secured having therein a horizontal slot, a cam-shaft j ournaled within said frame having a gear-tooth fitting said slot and means for rotating said shaft.

7 3. In a machine for perforating paper, the combination of a series of perforatmg-punches having heads on their upper ends, a corresponding die-plate, a gulde-plate above the die-plate through which said punches pass, a

vertically-movable punch-holding frame having a lower bar through which the upper ends of said punches pass, a face-plate on said frame having an edge or shoulder for resisting the upward thrust of said punches and having a horizontal slot or groove, a camshaft j ournaled within said frame and having a tooth or projection fitting said slot to impart motion to said frame and means for rotating said shaft.

4. In a machine for perforating paper, the combination of a series of perforatingpunches, a corresponding dielate, a guideplate above said die-plate t 'ough which said punches pass, a vertically-movable punch-holding frame to which the u per ends of the punches are secured, a cam-s iaft journaled parallel with and adjacent to said frame, said cam-shaft and said frame having interlocking projections whereby the rotation of said shaft moves said frame vertically.

Signed at Portland this 13th day of June, 1905.

EDWARD SOUTHWORTH.

Witnesses:

JOSEPHINE A. EBBEsoN, S. W. BATES. 

